Finding the Fourth Proportional to 7,767.06, 10,716.21 and 7,018.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,767.06 : 10,716.21 = 7,018.62 : x
2. Step 2: Convert to fraction form
   7,767.06/10,716.21 = 7,018.62/x
3. Step 3: Cross multiply
   7,767.06x = 10,716.21 × 7,018.62
4. Step 4: Simplify right side
   7,767.06x = 75,213,005.83
5. Step 5: Solve for x
   x = 75,213,005.83/7,767.06
6. Step 6: Final answer
   x = 9,683.59